Xbox 360 Dashboard Update Release Schedule

[Update 12/06/11 7:05AM PST: The update has been delayed. No specific new time has been announced yet.
Update 12/07/11: The update rolled out around the world at various times. I received it around 9pm PST on 12/06/11.]

Looking forward to the new Xbox 360 dashboard being released on 12/06/12? We’ve got the time that it’ll be available in your neck of the woods.